---
title: "geoCat"
output:
flexdashboard::flex_dashboard:
orientation: columns
vertical_layout: scroll
social: menu
source_code: embed
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
library(data.table)
library(highcharter)
library(dplyr)
library(knitr)
df <- fread("../output/output_state_count.csv_combined.csv")
```
```{r echo=FALSE, message=FALSE, warning=FALSE}
# function to sum the counts column by a given column name
sum_by_column <- function(in_df, column_names) {
#group by the list of column names and sum the counts column
in_df <- in_df[, .(counts = sum(counts)), by = column_names]
return(in_df)
}
# kable(sum_by_column(in_df = df, column_names = c("STATE_NAME")))
```
```{r}
sumByState <-
sum_by_column(in_df = df, column_names = c("STATE_NAME"))
# log10 transform the counts column
sumByState$counts <- log10(sumByState$counts)
#create a chlorealpleth map of the US
highchart() %>%
hc_add_series_map(
usgeojson,
sumByState,
value = "counts",
joinBy = c("name", "STATE_NAME"),
name = "Count",
dataLabels = list(enabled = TRUE, format = '{point.name}')
) %>%
hc_mapNavigation(enabled = TRUE) %>%
hc_colorAxis(stops = color_stops()) %>%
hc_title(text = "Count of Tracks by State") %>%
hc_add_theme(hc_theme_smpl()) %>%
hc_legend(enabled = FALSE) %>%
hc_tooltip(pointFormat = "{point.name}: {point.value}")
```